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Certified Clinical Nurse Specialist (CNS)

Mary C. Santorelli, NP

Works at hospitals in Morristown, NJ · New Jersey

Summary

Mary C. Santorelli, NP is a clinical nurse specialist at 100 Madison Ave, Morristown, NJ 07960. Phone: (973) 971-5596. Accepts Medicare assignment. In 2024, Mary C. Santorelli had 126 Original Medicare patients and 250 services. NPI 1518027622. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Clinical nurse specialist (Medicare lists Certified Clinical Nurse Specialist (CNS))
  • Address: 100 Madison Ave, Morristown, NJ 07960 · Directions
  • Phone: (973) 971‑5596
  • Medicare: Accepts Medicare assignment
  • Hospital: Morristown Medical Center
  • Group practice: Practice Associates Medical Group
  • School: graduated 1985
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Mary C. Santorelli, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Mary C. Santorelli accept Medicare assignment?
Yes. Medicare's clinician data says Mary C. Santorelli accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Mary C. Santorelli see?
In 2024, CMS data shows 126 Original Medicare patients and 250 services for Mary C. Santorelli. This counts Original Medicare only and measures volume, not quality.
What is Mary C. Santorelli's NPI number?
1518027622. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Mary C. Santorelli, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients126
Services billed to Medicare250
Different services or procedures5
Participating Medicare providerYes
Average age of these patients73

Most frequent services

  1. Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes (99221)98 services
  2. Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)80 services
  3. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)67 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure75%
  • High cholesterol75%
  • Depression75%
  • Anxiety75%
  • Arthritis60%
  • Ischemic heart disease52%

Hospitals where Mary C. Santorelli works

Medicare's Facility Affiliation Data lists Mary C. Santorelli at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

  • Morristown Medical CenterMorristown, NJ · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 310015

Practice locations

Addresses where Mary C. Santorelli is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Mary C. Santorelli as a member of this group (CMS data updated October 2, 2026).

  • Practice Associates Medical Group1,408 clinicians in the group

Specialties

Find other clinicians: Certified Clinical Nurse Specialist (CNS), New Jersey →

Other clinical nurse specialists in New Jersey

Clinicians with the same Medicare primary specialty in New Jersey — not a recommendation.

All clinical nurse specialists in New Jersey →

Other clinicians in Practice Associates Medical Group

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialNP
Graduation year1985
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1518027622
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians